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- Title
EFFECT OF IRRIGATION INTERVALS AND DIFFERENT LEVELS OF NITROGEN FERTILIZER ON VEGETATIVE GROWTH AND YIELD COMPONENTS OF COTTON PLANT GOSSYPIUM HIRSUTUM L.
- Authors
Al-Assaf, Mohamed Ali
- Abstract
This study was carried out in the Research Unit of Cotton, Technical Agricultural College, Mosul, Iraq during the period (2017-2018). It aimed at studying the effect of three irrigation periods (namely, 4, 8 and 12 days) and the levels of adding nitrogen fertilizer (15, 30, 45 and 60 kg N/ donum) on the vegetative growth and yield components of local cotton plant. The results showed that the first irrigation period (every 4 days) significantly outperformed the second and third irrigation periods (8 and 12 days, respectively) in relation to the plant height and number of vegetation branches only. On the other hand, the second irrigation period significantly excelled regarding the components of cotton production compared with the first and third irrigation periods which did not show significant differences concerning branches number. As for the effect of nitrogen fertilizer, it demonstrated that adding (45 kg N/ donum) of nitrogen fertilizer resulted in a significant increase in the vegetative growth of cotton. However, it did not differ significantly from the level (60 kg N/ donum) in terms of branches number of vegetative and fruiting as well as the nodes number up to the first branch. Additionally, the highest production levels of cotton lint and flower (6.210 and 6.390 kg/ donum), respectively, resulted from the second irrigation period with adding (45 kg N/ donum) of nitrogen fertilizer.
- Subjects
NITROGEN fertilizers; PLANT growth; COTTON yields; IRRIGATION management; FRUIT development; NODES (Botany)
- Publication
Plant Archives (09725210), 2020, Vol 20, Issue 1, p2717
- ISSN
0972-5210
- Publication type
Article